287.3(1)An employer shall ensure that electrical equipment has a means of isolating its energy source and that the energy source is
(a)
lockable,
(b)
situated in a location that is familiar to all employees, and
(c)
properly identified.
287.3(2)An employer shall provide a safety lock and key to a qualified person who may be required to lock out the electrical equipment.
287.3(3)An employer shall establish a written lock out procedure for electrical equipment and ensure that a qualified person who may be required to lock out the electrical equipment is adequately instructed and trained to lock out the electrical equipment.
287.3(4)An employer shall ensure that before a qualified person works on electrical equipment
(a)
an electrically safe work condition is established, and
(b)
each qualified person who will be working on the electrical equipment
(i)
verifies that an electrically safe work condition is established,
(ii)
locks out the electrical equipment using the safety lock and key provided by the employer, and
(iii)
puts a non-conductive tag on the safety lock that contains
(A)
words directing persons not to start or operate the electrical equipment,
(B)
the qualified person’s printed name and signature, and
(C)
the date and time when the tag was put on the safety lock.
287.3(5)Before working on electrical equipment, a qualified person shall verify that the requirements set out in subsection (4) have been complied with.
287.3(6)No person shall remove a safety lock or tag on electrical equipment except
(a)
the person who installed the safety lock or tag, or
(b)
in an emergency or, when attempts are made to contact the person referred to in paragraph (a) and the person is not available, a qualified person designated by the employer.
287.3(1)An employer shall ensure that the power supply to electrical equipment is de-energized, locked out of service and tagged before any work is done on the equipment and while the work is done on the equipment.
287.3(2)Electrical equipment is not required to be locked out if
(a)
the equipment is adequately grounded with a visible grounding wire, or
(b)
the voltage is less than 300 volts to ground, there is no locking device for circuit breakers and there is a procedure in place to ensure the circuit is not inadvertently energized.